2003 Chevrolet Astro Owner's Manual - Page 253
2003 Chevrolet Astro Manual
Page 253 highlights
If the overheat warning continues, there's one more thing you can try. You can add the proper coolant mixture directly to the radiator, but be sure the cooling system is cool before you do it. 1 Steam and scalding liquids from a hot cooling system can blow out and burn you badly.They are under pressure, and if you turn the radiator pressure cap - even a little- they can come out at high speed. Never turn the cap whenthe cooling system, including the radiator pressure cap, is hot. Wait for the cooling system and radiator pressure cap to cool if you ever have to turn the pressure cap. 5-36
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 |
 |
If
the overheat warning continues, there’s one
more
thing you can try.
You
can
add
the proper coolant
mixture directly to the radiator, but be sure the cooling
system is cool before
you
do
it.
1
Steam
and
scalding
liquids
from
a
hot
cooling
system
can
blow
out
and
burn
you
badly. They
are
under
pressure,
and
if
you
turn
the
radiator
pressure
cap
-
even
a
little
-
they
can
come
out at high speed.
Never turn
the
cap
when
the
cooling
system,
including
the
radiator
pressure
cap, is hot.
Wait
for
the
cooling
system
and
radiator
pressure
cap
to
cool
if
you
ever
have
to
turn
the
pressure cap.
5-36